摘要
The macroscopic mixing in a stirred tank with different tracer injection locations, impeller speeds and impeller positions is simulated numerically by solving the transport equation of the tracer based on the whole flow field in the baffled tank with a Rushton disk turbine numerically resolved using the improved inner-outer iterative procedure. Predicted mixing time is compared well with the literature correlations. The predicted residence time distribution of the stirred tank is very close to the present experimental results. The effect of the installation of a draft tube on the mixing time and residence time distributions is addressed.
The macroscopic mixing in a stirred tank with different tracer injection locations, impeller speeds and impeller positions is simulated numerically by solving the transport equation of the tracer based on the whole flow field in the baffled tank with a Rushton disk turbine numerically resolved using the improved inner-outer iterative procedure. Predicted mixing time is compared well with the literature correlations. The predicted residence time distribution of the stirred tank is very close to the present experimental results. The effect of the installation of a draft tube on the mixing time and residence time distributions is addressed.
出处
《过程工程学报》
EI
CAS
CSCD
北大核心
2006年第6期857-863,共7页
The Chinese Journal of Process Engineering
基金
Supported by the National Natural Science Foundation of China (No.20236050
50134020)
The National Basic Research Priorities Program (973) (No.2004CB217604)
关键词
混合
搅拌
材料
化学
macroscopic mixing
stirred tank
residence time distribution
mixing time
numerical simulation
